Add @font-feature-values #6804
Description
We already have the font-variant-alternates property, but the @font-feature-values associated with it is missing. In CSS, the two need to work together.
- Safari 16.2 https://webkit.org/blog/13591/webkit-features-in-safari-16-2/#:~:text=Interop%202022%20score.-,font%20features,-Safari%2016.2%20adds
- Chrome 111 https://chromestatus.com/feature/5070560260784128
- Firefox 34 https://bugzilla.mozilla.org/show_bug.cgi?id=975744
- Demo: https://developer.mozilla.org/en-US/docs/Web/CSS/font-variant-alternates#examples